foundling
From Longman Dictionary of Contemporary EnglishRelated topics: Childrenfoundlingfound‧ling /ˈfaʊndlɪŋ/ noun [countable] old use SSCa baby who has been left by its parents, and is found and looked after by other peopleExamples from the Corpusfoundling• Maria della Scala in Siena as a foundling.• They provided hospices for the sick or for raising the innumerable foundlings.• Of about half a million foundlings christened in workhouses after 1728, only 40 percent survived to their second birthday.• Miriam and Amina were not foundlings.• Our foundling is fast becoming a woman.